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ALEXANDER MATTHEW HOLTZ M.D., PH.D.
NPI 1942741293
Medical Genetics - Clinical Genetics (M.D.) in Boston, MA

Active since March 19, 2017PECOS Enrolled
300 LONGWOOD AVE, BOSTON, MA 02115(617) 355-6000 Get Directions Write a Review

NPPES record last updated: August 3, 2022. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Aug 3, 2022, Mar 19, 2017 (2 updates tracked since 2017).

About Alexander Matthew Holtz M.d., Ph.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ALEXANDER MATTHEW HOLTZ M.D., PH.D. (NPI 1942741293) is an individual clinical genetics (m.d.) provider in Boston, Massachusetts, licensed in Massachusetts (294346) and active in the NPI registry since March 2017. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1942741293
Entity TypeIndividualMale
Primary Taxonomy207SG0201X
Provider Legal NameALEXANDER MATTHEW HOLTZCredential: M.D., PH.D.
Location Address300 LONGWOOD AVEBoston, MA 02115-5724
Mailing Address300 Longwood AveBoston, MA 02115-5724
Phone(617) 355-6000
Sole ProprietorNo
Enumeration DateMarch 19, 2017
Last NPPES UpdateAugust 3, 20222 updates tracked since enumeration
NPPES CertifiedAugust 3, 2022
✔ NPI 1942741293 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyMedical Genetics · Clinical Genetics (M.D.)Allopathic & Osteopathic Physicians
Taxonomy Code207SG0201X
License✔ Licensed in MA · 294346
Definition
A clinical geneticist demonstrates competence in providing comprehensive diagnostic, management and counseling services for genetic disorders.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
300 LONGWOOD AVE, Boston, MA 02115
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Alexander Matthew Holtz M.d., Ph.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JULIE ANN HANSEN LCSW
Social Worker (Clinical)
300 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (857) 218-4309
MS. ANNA ROGLIERI
Nurse Practitioner (Psychiatric/Mental Health)
300 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (617) 355-6000
STEPHEN G. FLYNN M.D.
Anesthesiology (Pediatric Anesthesiology)
300 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (617) 355-6000
MISS LAUREN ASHLEY MASTERSON P.T., D.P.T
Physical Therapist
300 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (617) 355-7216
MS. SOYUN KWAN LICSW
Social Worker (Clinical)
300 LONGWOOD AVE, CHILDREN'S HOSPITAL BOSTON
BOSTON, MA 02115
Suffolk County (617) 355-0567
PUJA BANKA M.D.
Pediatrics
300 LONGWOOD AVE, BADER 203
BOSTON, MA 02115
Suffolk County (617) 355-6363
MR. COURTNEY SULLIVAN FRATTO CPNP
Nurse Practitioner (Pediatrics)
300 LONGWOOD AVE, HUNNEWELL BUILDING 322
BOSTON, MA 02115
Suffolk County (857) 218-4085
DR. ELIZABETH S TAGLAUER M.D., PH.D.
Pediatrics (Neonatal-Perinatal Medicine)
300 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (617) 355-6000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Alexander Holtz's NPI number?

The NPI number for Alexander Holtz is 1942741293. It was assigned to this individual provider in the NPPES registry on March 19, 2017.

Where is Alexander Holtz located?

Alexander Holtz practices at 300 Longwood Ave, Boston, MA 02115. The listed phone number is (617) 355-6000.

What is Alexander Holtz's specialty?

The primary specialty registered for this NPI is Medical Genetics, specializing in Clinical Genetics (M.D.), with taxonomy code 207SG0201X.

Is Alexander Holtz enrolled in Medicare?

Yes. Alexander Holtz is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Alexander Holtz was last updated on August 3, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.